A single vortex-core switching in a ferromagnetic disk is detected in real time by using a three-terminal device with the tunneling magnetoresistance junction. We show that the device works as a vortex core memory cell, where reading and writing can be done in an all-electrical way: binary data corresponding to the core direction can be read out electrically as the amplitude of the output, while the data can be written electrically by applying a pulsed current.
|Journal||Applied Physics Letters|
|Publication status||Published - 2011 Dec 26|
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)